"STACK soap's grooved design perfectly fits your previous sliver and merges it together with a new bar. Got a soap sliver? Press it into the groove on a new bar of STACK and they'll become one."While I admit this is a cool idea, I just can't imagine there are a lot of people who fret over the decision whether to throw out that tiny awkward wafer of soap that is left at the end of the bar. Plus, how many people are even using soap in bar form anymore?
➡ STACK Soap